From 93bd20836433e0a8f97da48d6edf9b5ed43d61c6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20M=C3=BCller?= <deso@posteo.net>
Date: Fri, 18 Aug 2023 10:27:16 -0700
Subject: [PATCH] Fix exit code propagation in fzy-tmux

Exit code propagation in fzy-tmux is seemingly subtly broken. fzy itself
exits with exit code 1 when quit with Esc (see fzy(1)).

That works fine and in the following example we correctly see /tmp
printed:
  $ echo test | fzy || echo /tmp
  > /tmp

However, once we do the same exercise with fzy-tmux, we no longer see
this printout:
  > echo test | fzy-tmux || echo /tmp
  >

Apparently, for some non-obvious reason, the 'echo $?' already reports a
zero exit code. Use proper shell conditional to try and propagate the
exit code with more success.
---
 contrib/fzy-tmux | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/fzy-tmux b/contrib/fzy-tmux
index 783c9f..1f5d5f 100755
--- a/contrib/fzy-tmux
+++ b/contrib/fzy-tmux
@@ -29,7 +29,7 @@ main() {
     eval "tmux \
         set-window-option synchronize-panes off \\; \
         set-window-option remain-on-exit off \\; \
-        split-window \"fzy --lines 50 $* < '${PATH_FIFO_IN}' > '${PATH_FIFO_OUT}' 2>&1; echo $? > '${PATH_FIFO_RET}'\""
+        split-window \"fzy --lines 50 $* < '${PATH_FIFO_IN}' > '${PATH_FIFO_OUT}' 2>&1 && echo 0 > '${PATH_FIFO_RET}' || echo 1 > '${PATH_FIFO_RET}'\""
 
     cat <&0 > "${PATH_FIFO_IN}" &
     cat < "${PATH_FIFO_OUT}"
-- 
2.41.0